U.S. patent application number 15/767398 was filed with the patent office on 2018-10-18 for camera drape.
This patent application is currently assigned to OKURA INDUSTRIAL CO., LTD.. The applicant listed for this patent is OKURA INDUSTRIAL CO., LTD.. Invention is credited to Yasuhiro AKUNE, Masanao ORIHARA, Yoshiki TAKAISHI, Junji YAMASAKI.
Application Number | 20180296292 15/767398 |
Document ID | / |
Family ID | 58517352 |
Filed Date | 2018-10-18 |
United States Patent
Application |
20180296292 |
Kind Code |
A1 |
YAMASAKI; Junji ; et
al. |
October 18, 2018 |
CAMERA DRAPE
Abstract
A camera drape that allows easy connection between a camera and
an endoscope is provided. The camera drape for covering a camera to
which an endoscope is connected includes a cylindrical camera drape
film having, in the following order from one end to the other end
thereof, a main body portion; and a distal end portion for holding
and accommodating the camera, the distal end portion having a
smaller inside diameter than the main body portion.
Inventors: |
YAMASAKI; Junji; (Kagawa,
JP) ; TAKAISHI; Yoshiki; (Kagawa, JP) ;
ORIHARA; Masanao; (Kagawa, JP) ; AKUNE; Yasuhiro;
(Kagawa, JP) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
OKURA INDUSTRIAL CO., LTD. |
Kagawa |
|
JP |
|
|
Assignee: |
OKURA INDUSTRIAL CO., LTD.
Kagawa
JP
|
Family ID: |
58517352 |
Appl. No.: |
15/767398 |
Filed: |
October 14, 2016 |
PCT Filed: |
October 14, 2016 |
PCT NO: |
PCT/JP2016/080518 |
371 Date: |
April 11, 2018 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
G02B 23/2484 20130101;
A61B 46/10 20160201; G02B 23/24 20130101; A61B 1/00142 20130101;
A61B 1/00144 20130101; G03B 17/56 20130101; A61B 1/00135
20130101 |
International
Class: |
A61B 46/10 20060101
A61B046/10; A61B 1/00 20060101 A61B001/00 |
Foreign Application Data
Date |
Code |
Application Number |
Oct 16, 2015 |
JP |
2015-204890 |
Claims
1-6. (canceled)
7. A camera drape for covering a camera to which an endoscope is to
be connected, comprising a cylindrical camera drape film having, in
the following order from one end to the other end thereof, a main
body portion, and a distal end portion that is configured to hold
and accommodate the camera therein and that has a smaller inside
diameter than the main body portion, wherein the camera drape film
further includes a guide portion between the main body portion and
the distal end portion, the guide portion having an inside diameter
that decreases in a direction from said one end to said the other
end of the camera drape film.
8. The camera drape according to claim 7, wherein the camera
includes a camera body, a camera code, and a connecter portion
connecting the camera body and the camera code, and wherein the
distal end portion forms an angle with the guide portion, said
angle being generally the same as that formed by the camera body
and the connecter portion.
9. The camera drape according to claim 7, wherein the camera drape
film has a water vapor permeability of 1000 g/(m.sup.224 h) or
greater when measured at 40.degree. C. and 90% RH by a humidity
sensor method according to JIS 1(7129: 2008.
10. The camera drape according to claim 7, further comprising a
connecting member that allows connection between the endoscope and
the camera.
11. The camera drape according to claim 7, further comprising a
receptacle for accommodating the camera drape film.
12. The camera drape according to claim 7, wherein the distal end
portion and the guide portion meet to form an angle at edges
thereof.
13. The camera drape according to claim 12, wherein the angle is
greater than 90 degrees and smaller than 150 degrees.
14. The camera drape according to claim 7, wherein, in a plan view
thereof, each of the distal end portion and the guide portion has
an edge that forms a straight line, wherein the straight lines of
the edges of the distal end portion and the guide portion meet to
form an angle of greater than 90 degrees and smaller than 150
degrees.
15. The camera drape according to claim 7, wherein the distal
portion has a length, in a direction from said one end to said the
other end of the camera drape film, of 100 to 150 mm and a lay-flat
width of 30 to 200 mm and wherein the main body portion has a
lay-flat width of 50 to 350 mm.
Description
TECHNICAL FIELD
[0001] The present invention relates to a camera drape for covering
a camera to which an endoscope is to be connected.
BACKGROUND ART
[0002] In recent years, endoscopic surgeries using an endoscopic
device including a camera connected to an endoscope are practiced
as minimally invasive medical procedures that impose less burden on
patients' bodies. In an endoscopic surgery, the endoscope must be
used in sanitary conditions because body fluids or medicinal
solutions may adhere to the endoscope during surgery and because
the endoscope is inserted into the patient's body. Thus, the
endoscope and the camera must be sterilized before surgery to
prevent infection. This not only leads to an increase in costs and
time but also other problems such as deterioration of the camera
caused by sterilization. Thus, to ensure cleanliness of surfaces of
the camera, Patent Documents 1 and 2, for example, disclose a
camera drape including a cylindrical camera drape film used to
cover a camera and a cylindrical receptacle for containing the
camera drape film in a folded state.
[0003] The camera drape films of the camera drapes of Patent
Documents 1 and 2 have a distal end portion formed with a
connecting portion for allowing connection between a camera and an
endoscope and a proximal end portion fixed in the receptacle. A
method of using the camera drape of the Patent Document 1 or 2 is,
for example, as follows. A coupling portion of the endoscope is
placed at the connecting portion of the distal end portion of the
camera drape film. Then, with the endoscope maintained in this
state, a coupling portion of the camera is placed at the coupling
portion of the endoscope within the camera drape film and is then
connected thereto via the camera drape film. Finally, the
receptacle is pulled to draw the camera drape film out of the
receptacle so that the entire camera is covered with the camera
drape film.
RELATED ART DOCUMENT
Patent Document
[0004] Patent Document 1: U.S. Pat. No. 6,123,080
[0005] Patent Document 2: Japanese Unexamined Patent Publication
No. JP-A-H07-204211
SUMMARY OF THE INVENTION
Problems to be Solved by the Invention
[0006] In operating rooms, clean and unclean areas are strictly
controlled to prevent infection. When someone handles an unclean
thing with clean gloves, he or she can no more handle a clean thing
unless he or she changes the gloves to clean ones. If the camera is
clean, a single operator can cover the camera with a camera drape
(which is naturally clean) without the need to change the gloves to
clean ones. However, cameras are usually not sterilized and hence
unclean because a sterilization treatment may cause failure or
deterioration of cameras. Thus, covering a camera with a camera
drape requires the collaboration of two operators, one to hold the
camera, which is unclean, and the other to handle the endoscope and
the camera drape, which are clean. It is, however, rather difficult
for two operators to collaborate to place the endoscope and the
camera in position within a camera drape film. This is a serious
problem because there is no time to lose in some cases in a special
situation like an endoscopic surgery.
[0007] It is, therefore, an object of the present invention to
provide a camera drape that allows easy connection between a camera
and an endoscope.
Means for Solving the Problems
[0008] A camera drape according to the present invention for
covering a camera to which an endoscope is to be connected includes
a cylindrical camera drape film having, in the following order from
one end to the other end thereof, a main body portion and a distal
end portion for holding and accommodating the camera, the distal
end portion having a smaller inside diameter than the main body
portion.
[0009] With this configuration, because the camera drape film
includes the distal end portion with a smaller inside diameter than
the main body portion for holding and accommodating the camera, the
camera, when introduced into the camera drape film, can be easily
placed in position in the distal end portion of the camera drape
film. In addition, because the camera can be stably held in
positon, the endoscope can be easily connected to the camera.
[0010] In the present invention, the camera drape film may further
include a guide portion between the main body portion and the
distal end portion, the guide portion having an inside diameter
that decreases in a direction from the one end to the other end of
the camera drape film. With this configuration, because the camera
drape film includes the guide portion, which has an inside diameter
decreasing in a direction from the one end to the other end of the
camera drape film, the camera can be easily guided into the distal
end portion of the camera drape film.
[0011] In the present invention, the camera includes a camera body,
a camera code, and a connecter portion connecting the camera body
and the camera code, wherein the distal end portion forms an angle
with the guide portion, the angle being generally the same as that
formed by the camera body and the connecter portion.
[0012] With this configuration, a camera including a camera body
and a camera code can be snugly received in the distal end portion
and the camera can be easily maintained in position in the camera
drape.
[0013] In the present invention, the camera drape film has a water
vapor permeability of 1000 g/(m.sup.224 h) or greater when measured
at 40.degree. C. and 90% RH by a humidity sensor method according
to JIS K7129: 2008. With this configuration, the camera drape film
can be prevented from fogging during use due to heat from the
accommodated camera.
[0014] The camera drape of the present invention may further
include a connecting member that allows connection between the
endoscope and the camera.
[0015] The camera drape of the present invention may further
include a receptacle for accommodating the camera drape film. With
this configuration, unnecessary contamination of the camera drape
film itself can be prevented.
Effect of the Invention
[0016] According to the camera drape of the present invention,
because a camera can be easily placed and stably maintained in
position in the camera drape film, an endoscope can be easily
connected to the camera.
BRIEF DESCRIPTION OF THE DRAWINGS
[0017] FIG. 1 is a plan view of a camera drape according to one
embodiment of the present invention.
[0018] FIG. 2 is an enlarged plan view of the camera drape
according to one embodiment of the present invention.
[0019] FIG. 3 is an enlarged plan view of a camera drape according
to another embodiment of the present invention.
[0020] FIG. 4 is an enlarged plan view of a camera drape according
to another embodiment of the present invention.
[0021] FIG. 5 is an enlarged plan view of a camera drape according
to another embodiment of the present invention.
[0022] FIG. 6 is an enlarged plan view of a camera drape according
to another embodiment of the present invention.
[0023] FIG. 7 is an enlarged plan view of a camera drape according
to another embodiment of the present invention.
[0024] FIG. 8 is an enlarged plan view of a camera drape according
to another embodiment of the present invention.
[0025] FIG. 9 is an enlarged plan view of a camera drape according
to another embodiment of the present invention.
PREFERRED EMBODIMENTS OF THE INVENTION
[0026] A camera drape according to one embodiment of the present
invention will be hereinafter described with reference to the
drawings. The camera drape of the present invention includes a
camera drape film 10. FIG. 1 is a plan view of the camera drape
film 10, and FIG. 2 is an enlarged plan view of the camera drape
film 10. As shown in FIG. 1 and FIG. 2, the camera drape film 10,
which is used to cover a camera to which an endoscope is to be
connected, has a cylindrical shape, and includes, in the following
order from one end 10X to the other end 10Y thereof, a main body
portion 11, and a distal end portion 12 that has a smaller inside
diameter than the main body portion 11 and that is adapted to hold
and accommodate the camera. The camera drape film 10 further
includes a guide portion 13 between the main body portion 11 and
the distal end portion 12. The one end 10X of the camera drape film
10 is open, and the other end 10Y of the camera drape film 10 is
closed except for a connecting portion 10a, which is an aperture
formed to allow connection between the camera and an endoscope. In
some cases, a connecting member may be attached to the connecting
portion 10a.
[0027] As shown in FIG. 1 and FIG. 2, the main body portion 11 has
a rectangular shape, for example, as viewed in a plan view, and has
a length of, for example, 2,000 to 5,000 mm from the one end 10X
side end to the other end 10Y end thereof. The main body portion 11
preferably has a lay-flat width of 50 to 350 mm, though the
lay-flat width is be set based on the shape of the camera used. The
term "lay-flat width" is intended to refer to the width between
upper and lower ends of the camera drape film 10 as viewed in a
plan view when the camera drape film 10 is laid flat on a flat
surface. The inside diameter is obtained by dividing the double of
the lay-flat width by the circular constant. Thus, the smaller the
inside diameter, the smaller is the lay-flat width.
[0028] As shown in FIG. 1 and FIG. 2, the distal end portion 12 has
a smaller inside diameter than the main body portion 11 and is
configured to hold and accommodate a camera. The distal end portion
12 has a rectangular shape, for example, as viewed in a plan view,
and has a length of, for example, 100 to 150 mm from the one end
10X side end to the other end 10Y side end thereof and is set in
agreement with the length of the camera used. The distal end
portion 12 preferably has a length generally the same as the length
of the camera used. The distal end portion 12 has a lay-flat width
of, for example, 30 to 200 mm and is set in agreement with the size
of the camera used. It is preferred that the lay-flat width
generally matches to the size of the camera used.
[0029] As shown in FIG. 1 and FIG. 2, the guide portion 13 has an
inside diameter decreasing from the one end 10X side end toward the
other end 10Y side end thereof, and has straight edges 13a and 13b,
for example. The guide portion 13 has a length of 50 to 150 mm from
the one end 10X side end to the other end 10Y side end thereof.
This configuration of the guide portion 13 allows easy introduction
of the camera into the distal end portion 12 within the camera
drape film 10. In a plan view of the camera drape film 10 shown in
FIG. 1 and FIG. 2, the straight line formed by an edge 12a (12b) of
the distal end portion 12 and the straight line formed by the edge
13a (13b) of the guide portion 13 preferably form an angle greater
than 90 degrees and smaller than 150 degrees, for example. When the
camera is constituted of a camera body 21 and a connecter portion
22 that connects the camera body 21 and a camera code 23, the
camera body 21 may form an angle with the connecter portion 22 in
some cases. In such a case, as shown in FIG. 1, the angle formed by
the straight line formed by the edge 12a (12b) of the distal end
portion 12 and the straight line formed by the edge 13a (13b) of
the guide portion 13 is preferably generally the same as the angle
formed by the camera body 21 and the connecter portion 22, more
specifically, within .+-.5 degrees of the angle formed by the
camera body 21 and the connecter portion 22.
[0030] The connecting portion 10a is configured to allow connection
between the camera and an endoscope. The connecting portion 10a may
simply be an opening with a semicircular shape as viewed in a plan
view formed near the center of the other end 10Y of the distal end
portion 12 as shown in FIG. 1 and FIG. 2. Alternately, a connecting
member, for example, may be attached to the connecting portion 10a
for ease of connection between the camera and the endoscope.
[0031] The camera drape film 10 may be folded in an accordion
fashion along its longitudinal direction to reduce the length from
the one end 10X to the other end 10Y. Alternately, the camera drape
film 10 may be folded back and forth at regular intervals along a
direction from the one end 10X to the other end 10Y to make it
compact. The intervals are set to 10 to 50 mm, for example. The
camera drape film 10 may be simply drawn to one side to make it
compact.
[0032] The camera drape film 10 is made of a known polymeric resin
such as a polyurethane-based resin, a polyethylene-based resin or a
polyimide-based resin. Because the inside of the camera drape film
10 may fog due to heat from the accommodated camera during use, the
use of a polymeric resin having a water vapor permeability of 1000
g/(m.sup.224 h) or greater when measured at 40.degree. C. and
90%
[0033] RH by a humidity sensor method according to JIS K7129: 2008
is preferred. From the standpoint of providing a close fit for the
camera and of improvement of operability of operation buttons of
the camera in use, a polyurethane resin is preferred.
[0034] The camera drape film 10 has a thickness of 20 to 100 .mu.m,
for example.
[0035] A method for producing a camera drape film according to one
embodiment of the present invention will be next described.
[0036] A polymeric resin as described above is formed into a film
by an inflation method or a T-die method. When an inflation method
is employed, a cylindrical film can be obtained. When a T-die
method is employed, a cylindrical film can be obtained by stacking
two resulting films and sealing the films along their sides by a
known method.
[0037] Then, with the one end 10X of the obtained cylindrical film
left as it is, heat sealing is carried out by a known method in
such a way that the other end 10Y side part of the cylindrical film
is formed with the desired shapes of the guide portion 13 and the
distal end portion 12 as described above. As a result, the camera
drape film 10 including the main body portion 11, the guide portion
13 and the distal end portion 12 can be obtained.
[0038] In addition, when the camera drape film is accommodated in a
receptacle, the camera drape can be provided.
[0039] Description will be next made of how to use the camera drape
film 10 according to one embodiment of the present invention.
First, a camera drape having a receptacle containing the camera
drape film 10 folded at regular intervals is prepared.
[0040] Then, a camera is inserted into the camera drape film 10
through an opening of the receptacle, and introduced through the
guide portion 13 into the distal end portion 12, where the camera
is held and placed in position. This procedure may be carried out
by placing the camera with a hand. However, the camera can be
almost automatically accommodated and placed in position in the
distal end portion 12 when the camera is dropped into the camera
drape film 10 held with its distal end portion 12 facing downward.
When the camera drape film is made of a soft polymeric resin such
as a urethane resin, a camera drape film cannot maintain a
cylindrical shape and it is, therefore, not easy to insert the
camera close to the distal end portion 12 and place the camera in
position unless the distal end portion faces downward even when the
camera drape film 10 is contained in a receptacle. Even in such a
case, with the camera drape of the present invention, the camera
can be placed in position by simply dropping it into the camera
drape film 10. Thus, the camera drape of the present invention is
particularly useful.
[0041] Finally, an endoscope is connected to the camera stably held
in the distal end portion 12, and the camera drape film 10 is drawn
out of the receptacle to cover the entire camera with the camera
drape film 10.
[0042] While one embodiment of the present invention is described
in the foregoing, specific aspects of the present invention are not
limited to the above embodiment. For example, while the camera
drape film 10 has the guide portion 13 in the above embodiment
shown in FIG. 1 and FIG. 2, the guide portion 13 may be omitted as
long as the camera can be easily placed and stably held in position
in the distal end portion 12.
[0043] While the distal end portion 12 has a rectangular shape as
viewed in a plan view in the above embodiment shown in FIG. 1 and
FIG. 2, the shape of the distal end portion 12 is not limited to
the rectangular shape. For example, as shown in FIG. 3, the distal
end portion 12 may have a trapezoidal shape having an inside
diameter increasing in a direction from the one end 10X to the
other end 10Y as viewed in a plan view. In contrast to this, as
shown in FIG. 4, the distal end portion 12 may have a trapezoidal
shape having an inside diameter decreasing in a direction from the
one end 10X to the other end 10Y as viewed in a plan view.
[0044] In the above embodiment shown in FIG. 1 and FIG. 2, the
distal end portion 12 may have beveled corners 12c and 12d as shown
in FIG. 5, for example.
[0045] Further, as shown in FIG. 6, the distal end portion 12 may
have protrusions 12e and 12f, which are triangular as viewed in a
plan view, at corners 12c and 12d thereof.
[0046] While the guide portion 13 has straight edges 13a and 13b in
the above embodiment shown in FIG. 1 and FIG. 2, the edges 13a and
13b may not be necessarily straight. For example, the guide portion
13 may have edges 13a and 13b that are curved to be convex toward
the inside of the camera drape film 10 as shown in FIG. 7. In
contrast to this, the guide portion 13 may have edges 13a and 13b
that are curved to be convex toward the outside of the camera drape
film 10 as shown in FIG. 8.
[0047] While the connecting portion 10a is formed as an opening
with a semicircular shape as viewed in a plan view at the other end
10Y side end of the distal end portion 12 in the above embodiment,
the shape of the connecting portion 10a may not be necessarily
semicircular. For example, the connecting portion 10a may be formed
as an opening with a rectangular shape as viewed in a plan view as
shown in FIG. 9.
DESCRIPTION OF REFERENCE NUMERALS
[0048] 10: camera drape film [0049] 10a: connecting portion [0050]
10X: one end [0051] 10Y: the other end [0052] 11: main body portion
[0053] 12: distal end portion [0054] 12a, 12b: edges of the distal
end portion [0055] 12c, 12d: corners of the distal end portion
[0056] 12e, 12f: tabs at the distal end portion [0057] 13: guide
portion [0058] 13a, 13b; edge of the guide portion [0059] 21:
camera body [0060] 22: connecter portion [0061] 23: camera code
* * * * *